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Which of the following is an example of trisomy ________________(a) Endosperm(b) Klinefelter(c) Turner(d) XerodermaThis question was addressed to me in an online interview.This intriguing question comes from Chromosomal Abnormalities : Aneuploidy topic in division Chromosomal Basis of Inheritance of Cytogenetics

Answer»

Right answer is (b) Klinefelter

To explain I would say: Klinefelter syndrome results from trisomy in sex chromosome PRODUCING 44+ XXY. Turner is due to MONOSOMY, ENDOSPERM is triploid i.e. the complete set of chromosome is increased and XP is due to mutation or deletion in gene not entire chromosome.



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